﻿PLATE 
  cm. 
  

  

  Synalpheus 
  falcatus 
  (p. 
  574). 
  

   Fig. 
  1. 
  Lateral 
  view 
  ; 
  enlarged 
  three 
  times 
  

  

  c. 
  Cephalon, 
  frontal 
  region 
  ; 
  with 
  h, 
  first, 
  and 
  c, 
  second 
  antenna. 
  

  

  d. 
  Mandible. 
  

  

  e. 
  First 
  siagnopod. 
  

  

  /.' 
  Second 
  siagnopod. 
  

  

  (J. 
  Third 
  siagnopod. 
  

  

  li. 
  Fii'st 
  gnathopod. 
  

  

  i. 
  Second 
  gnathopod. 
  

  

  k. 
  First 
  pereiopod 
  ; 
  larger 
  chela, 
  left. 
  

  

  //. 
  Chela 
  open 
  to 
  show 
  the 
  form 
  of 
  the 
  dactylos. 
  

  

  //'. 
  First 
  pereiopod 
  ; 
  smaller 
  chela, 
  right 
  side. 
  

  

  m. 
  Third 
  ])ereio]iod 
  ; 
  terminal 
  joints. 
  

  

  q. 
  Second 
  pleopod, 
  bearing 
  ova. 
  

  

  7A\ 
  Rhipidura. 
  

  

  